256Mb: 3V Embedded Parallel NOR Flash
Power-Up and Reset Characteristics
Table 29: Reset AC Specifications
Note 1 applies to the entire table
Symbol
Condition/Parameter
Legacy
tREADY
tRP
JEDEC
tPLRH
tPLPH
tPHEL,
tPHGL,
tPHWL
Min
–
Max
55
–
Unit
µs
Notes
RST# LOW to read mode during program or erase
RST# pulse width
2
20
55
µs
RST# HIGH to CE# LOW, OE# LOW
tRH
–
ns
2
RST# LOW to standby mode during read mode
RST# LOW to standby mode during program or erase
RY/BY# HIGH to CE# LOW, OE# LOW
tRPD
tRB
–
20
55
0
–
–
–
µs
µs
ns
tRHEL,
tRHGL,
tRHWL
2
1. Specifications apply to 70 and 80ns devices unless otherwise noted.
2. Sampled only; not 100% tested.
Notes:
Figure 14: Reset AC Timing – No PROGRAM/ERASE Operation in Progress
RY/BY#
CE#, OE#, WE#
t
RH
RST#
t
RP
Figure 15: Reset AC Timing During PROGRAM/ERASE Operation
tREADY
RY/BY#
tRB
CE#, OE#, WE#
tRH
RST#
tRP
PDF: 09005aef84ecabef
m29dw_256g.pdf - Rev. A 10/12 EN
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